
/*
 * Copyright (C) Igor Sysoev
 * Copyright (C) Nginx, Inc.
 */


#ifndef _NGX_HTTP_CONFIG_H_INCLUDED_
#define _NGX_HTTP_CONFIG_H_INCLUDED_


#include <ngx_config.h>
#include <ngx_core.h>
#include <ngx_http.h>


typedef struct
{
    void **main_conf;
    void **srv_conf;
    void **loc_conf;
} ngx_http_conf_ctx_t;


typedef struct
{
    ngx_int_t (*preconfiguration)(ngx_conf_t *cf);
    ngx_int_t (*postconfiguration)(ngx_conf_t *cf);

    void *(*create_main_conf)(ngx_conf_t *cf);
    char *(*init_main_conf)(ngx_conf_t *cf, void *conf);

    void *(*create_srv_conf)(ngx_conf_t *cf);
    char *(*merge_srv_conf)(ngx_conf_t *cf, void *prev, void *conf);

    void *(*create_loc_conf)(ngx_conf_t *cf);
    char *(*merge_loc_conf)(ngx_conf_t *cf, void *prev, void *conf);
} ngx_http_module_t;


#define NGX_HTTP_MODULE 0x50545448 /* "HTTP" */

#define NGX_HTTP_MAIN_CONF 0x02000000
#define NGX_HTTP_SRV_CONF  0x04000000
#define NGX_HTTP_LOC_CONF  0x08000000
#define NGX_HTTP_UPS_CONF  0x10000000
#define NGX_HTTP_SIF_CONF  0x20000000
#define NGX_HTTP_LIF_CONF  0x40000000
#define NGX_HTTP_LMT_CONF  0x80000000


#define NGX_HTTP_MAIN_CONF_OFFSET offsetof(ngx_http_conf_ctx_t, main_conf)
#define NGX_HTTP_SRV_CONF_OFFSET  offsetof(ngx_http_conf_ctx_t, srv_conf)
#define NGX_HTTP_LOC_CONF_OFFSET  offsetof(ngx_http_conf_ctx_t, loc_conf)


#define ngx_http_get_module_main_conf(r, module) \
    (r)->main_conf[module.ctx_index]
#define ngx_http_get_module_srv_conf(r, module) (r)->srv_conf[module.ctx_index]
#define ngx_http_get_module_loc_conf(r, module) (r)->loc_conf[module.ctx_index]


#define ngx_http_conf_get_module_main_conf(cf, module) \
    ((ngx_http_conf_ctx_t *)cf->ctx)->main_conf[module.ctx_index]
#define ngx_http_conf_get_module_srv_conf(cf, module) \
    ((ngx_http_conf_ctx_t *)cf->ctx)->srv_conf[module.ctx_index]
#define ngx_http_conf_get_module_loc_conf(cf, module) \
    ((ngx_http_conf_ctx_t *)cf->ctx)->loc_conf[module.ctx_index]

#define ngx_http_cycle_get_module_main_conf(cycle, module)                 \
    (cycle->conf_ctx[ngx_http_module.index]                                \
         ? ((ngx_http_conf_ctx_t *)cycle->conf_ctx[ngx_http_module.index]) \
               ->main_conf[module.ctx_index]                               \
         : NULL)


#endif /* _NGX_HTTP_CONFIG_H_INCLUDED_ */
